Load-relieving device for servomotors adjusting the height of cantilever arms
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United States of America Patent
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-
Mar 9, 1993
Grant Date -
N/A
app pub date -
Dec 13, 1991
filing date -
Dec 14, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus including a frame, a cantilever arm movably mounted on the frame, and a servomotor operatively connected to the frame and the cantilever arm for setting a height position of the cantilever arm. The servomotor is exposed to tension loads derived from forces acting on the cantilever arm. The apparatus further includes a device for relieving the servomotor of the tension loads for an arbitrary period. The device includes a tension member attached parallel to the servomotor for the arbitrary period. The device further has an intermediate member having a first pivot joint operatively articulated to the cantilever arm for introducing the tension loads into the intermediate member, a second pivot joint for being coupled to an end of the tension member and a third pivot joint for being releasably coupled to the servomotor. The first, second and third pivot joints are spaced from one another and form the three corners of an imaginary triangle.
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